A high court order in favour of M&G's investigative centre amaBhungane has beaten down CSR E-loco's attempt to dilute corporate transparency.
Court affidavits suggest the public protector was not given all the documents that would allow for a comprehensive investigation.
The recent conviction of a journalist shows how the law can be used to muzzle freedom of expression.
Three years later, the Protection of State Information Act is vastly better than when it was tabled but it still does not pass constitutional muster.
The release of over 12 000 pages of documents marks a victory in the long battle between amaBhungane and the department of public works.
At a time of unprecedented movement to greater corporate transparency internationally, South Africa has a small but momentous choice to make.
In Nineteen Eighty-Four George Orwell described a state where "always the eyes were watching you".
By resisting pressure from the department of state security and introducing amendments, the NCOP has struck a blow for democracy.
The battle for the truth about Nkandla is far more significant than the recent squabble between Helen Zille and a group of Zuma loyalists suggests.